Continuous heating-furnace.



APPLICATION FILED F3125. 1903.

2 SEBETSSHEETVL NO MODEL.

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I I n No. 729,370. I 'PATENTED MAY 26, 1903.

H. v. LOSS; commuous HEATING FURNACE.

- APPLICATION TILED FEB. 25.19%. I I0 IODEL. 2 SHEETS-$8321 2- W JO THE NORRIS PETERS no, mm'oumm, WASHINGTON, a. ':v

I Patented May 26, 1903.

OFFIGE.

HENRIK v. LOSS, or PHILADELPHIA, PENNSYLVANIA.

CONTlNUOUS HEATING-FURNACE.

SPECIFICATION forming part of Letters Patent No. 729,370, dated. May 26, 1903.

Application filed February 25, 1903. Seriai No. 145,058. (No model) To all ZU7l/077b it may concern:

Be it known that 1, HENRIK V. Loss, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Continuous Heating-Furnaces; and I do-hereby-declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

In passing rounded articles, such as carwheels and the like, through a continuous heating-furnace difficulty has been heretofore experienced in maintaining them in straight lines on their supports, since, owing to the contours of their peripheries, the various articles cannot be relied upon to push one an-' other when in direct contact. In treating large ingots and other large sections it is often found desirable to provide for the passage of the flame between the adjacent sections,which ordinarily are in direct engagement. Then, again, in heating fine material, such as toolsteel of high carbon, it is desirable to prevent the material or articles from contactin with the water-cooled pipes usually employed on' the supports over which the material or articles are passed in their travel through the furnace.

To overcome the difficulty and secure the advantages above outlined is the object ofthis invention, which will be hereinafter fully set forth, and particularly pointed out in the claims. 7

In the accompanying drawings, Figure 1 is a vertical longitudinal sectional view of a continuous heating-furnace, showing the application of my improvements. Fig. 2 is a plan view with the furnace-walls in section. Fig. 3 is a transverse sectional view on lines 3 3, Fig. 1. Fig. 4: is a plan view of one of the shoes, and Fig. '5 an end View thereof. Figs. 6, 7, and 8 are views similar to Figs. 1, 2, and 3, respectively, showingmy improve ments as used in connection with the heating of ingots. Figs. 9 and 1O are respectively plan and edge views of the form of shoes employed for this purpose.

In the drawings I have shown a continuous heating-furnace of the automatic-discharge type after the form patented by reissued Letters Patent No. 11,666, dated May 31, 1898, to Alexander Laughlin and Josef Reuleaux.

1 designates the furnace, and 2 the supports extended longitudinally thereof from the receiving-opening 3 to the discharge-opening 4, such supports being inclined at 5, so as to insure the automatic discharge of the articles or materials onto a conveyer 7.

8 is the pushing mechanism, and 9 a truck between the latter and the receiving-opening.

In Figs. 1, 2, and 3 I have shown continuous lines of car-wheels extended over the supports, each wheel resting upon an independent bearing in the form of a shoe 10, the width whereof is slightly greater than the space between the water-pipes 12. The length of each shoe is slightly greater than the diameter of the carwheel, so that the several shoes will be in direct engagement throughout the length of the line and the articles supported thereby will be held apart. The forward end of each shoe is preferably in the-form of a V, as shown at 13, while its rearward end is formed with a V- shaped recess 14. Each shoe is shown as formed with a central boss 15 for entering the central opening of a wheel, and thereby insure the retention of the latter in place. The shoes and the wheels pass over the inclined portion of the support and out of the discharge opening, the wheel falling onto the conveyer, while the shoe will drop off between the latter and the'furnace, and after it is cooled it is ready for further use. The same idea may be carried out in connection with the heating of large ingots or other large sections, as shown in Figs. 6, 7, and S. In this instance the longitudinal contacting edges of the shoes are preferably straight, while their ends are reduced, so as to secure a perfect fit on the water-pipes. The ingots in passing through the furnace are held sufficiently apart, as shown in Figs. 6 and 7, to allow the flame to pass between them. Similar means maybe employed to advantage in heating any specially fine material, such as tool-steel, and this having a high degree of carbon it is desirable not to allow it to contact with the water-pipes. It is obvious that these independent bearings for the articles being heated may be variously constructed.

I claim as my invention 1. In a continuous heating-furnace having receiving and discharge openings at or near the ends of the furnace, and supports extended from such receiving-opening to the dischargeopening, a movable bearing for the articles being treated, such bearing resting directly 011 and spanning the space between the supports and formed'in separate sections capable supports extended therethrough and pipes mounted on such supports, a series of shoes resting on and spanning the spaces between such pipes, such shoes being so formed as to project forward and rearward of the article supported thereby, as set forth.

4. In a continuous heating-furnace having supports extended therethrough and pipes mounted on said supports, a series of shoes resting on and spanning the spaces between such pipes, each shoe consisting of a flat plate having a central boss extended upwardly therefrom, for the purpose stated, the several shoes being so formed as to project forward and rearward of the article supported thereby.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

HENRIK V. LOSS. Witnesses:

DAVID N. FELL, Jr., HENRY SPALDING. 

